Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Márcio José Coelho Pontes"'
Publikováno v:
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 241
In recent years outbreaks of vector-borne diseases have caused great concern to the population, especially those diseases transmitted by mosquitoes. Repellents appear as an affordable alternative for prevention, making it increasingly important to co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de4e83d8743040bb63681b1fa88083e4
https://pubmed.ncbi.nlm.nih.gov/32653822
https://pubmed.ncbi.nlm.nih.gov/32653822
Voltammetric e-Tongue Based on a Single Sensor and Variable Selection for the Classification of Teas
Autor:
Sherlan G. Lemos, Márcio José Coelho Pontes, Dayvison Ribeiro Rodrigues, Diana S. M. de Oliveira
Publikováno v:
Food Analytical Methods. 11:1958-1968
This work presents a simple and low-cost strategy to obtain voltammetric tongues by using a single voltammetric sensor aided by variable selection techniques. A usual electronic tongue consists of an array of physical sensors followed by data compres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34d958d67e85a3e96b8b1fa5eeb97b65
https://doi.org/10.1007/s12161-018-1162-9
https://doi.org/10.1007/s12161-018-1162-9
Autor:
Márcio José Coelho Pontes, Mário César Ugulino de Araújo, Licarion Pinto, Emanuella Santos Sousa, Welma T. S. Vilar
Publikováno v:
Analytical Methods. 10:1911-1917
The increasing number of cases of dengue, chikungunya, yellow fever and Zika virus has caused many people to use repellents to try to protect themselves from the Aedes aegypti mosquito that transmits these diseases. There are a variety of products th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbf6fe03e4a4228af7654825b1a78b6a
https://doi.org/10.1039/c8ay00486b
https://doi.org/10.1039/c8ay00486b
Autor:
Karla Danielle Tavares de Melo Milanez, Thiago César Araújo Nóbrega, Márcio José Coelho Pontes, Matías Insausti, Danielle Silva Do Nascimento
Publikováno v:
Microchemical Journal. 133:669-675
This work evaluates the use of transfer of classification models for identifying adulteration of extra virgin olive oil (EVOO) samples involving, separately, two analytical techniques: fluorescence spectroscopy and digital imaging. The chemometric pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05f360f275d37d379e55c796bf16fb15
https://doi.org/10.1016/j.microc.2017.03.004
https://doi.org/10.1016/j.microc.2017.03.004
Autor:
Maria Ivanda S. Gonçalves, Everaldo Paulo de Medeiros, Márcio José Coelho Pontes, Welma T. S. Vilar
Publikováno v:
Computers and Electronics in Agriculture. 123:89-94
Display Omitted A simple and inexpensive analytical method based on digital image.Determination of quality parameters in cotton plumes.Comparative evaluation of two multivariate calibration techniques.Fast analysis of cotton plume without destroying
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c04d94513d338e023b8feac3a587f90
https://doi.org/10.1016/j.compag.2016.02.007
https://doi.org/10.1016/j.compag.2016.02.007
Autor:
Márcio José Coelho Pontes, José Eduardo de Matos Paz, Karla Danielle Tavares de Melo Milanez, Everaldo Paulo de Medeiros, Adenilton Camilo Silva
Publikováno v:
Microchemical Journal. 124:121-126
This work proposes the use of classification transfer based on standardization methods to investigate adulteration in hydrated ethyl alcohol fuel (HEAF) samples analyzed in two different NIR spectrometers. For this purpose, direct standardization (DS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bc5318b23cc28c29da34582ac93ac98
https://doi.org/10.1016/j.microc.2015.08.013
https://doi.org/10.1016/j.microc.2015.08.013
Autor:
Welma T. S. Vilar, Mayara F. Barbosa, Mário César Ugulino de Araújo, Licarion Pinto, Márcio José Coelho Pontes
Publikováno v:
Microchemical Journal. 152:104285
Aedes aegypti mosquitoes are vectors of diseases such as dengue, chikungunya, zika and yellow fever. With the increase in the incidence of these diseases the population has resorted to the use of repellents searching to protect themselves from mosqui
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec7f9d04978e7165168e54f18aab7e7b
https://doi.org/10.1016/j.microc.2019.104285
https://doi.org/10.1016/j.microc.2019.104285
Autor:
Márcio José Coelho Pontes, José Eduardo de Matos Paz, Adenilton Camilo Silva, Romário Ewerton Lira de Abreu, Sherlan G. Lemos
Publikováno v:
Fuel. 156:20-25
In this work, it is proposed the one-voltammogram simultaneous determination of methanol and ethanol in hydrated ethyl alcohol fuel (HEAF) samples by cyclic voltammetry and multivariate calibration. To perform the determination, different multivariat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b4cf33723906582285ea0b135034473
https://doi.org/10.1016/j.fuel.2015.04.024
https://doi.org/10.1016/j.fuel.2015.04.024
Autor:
Celio Pasquini, Márcio José Coelho Pontes, Maria Fernanda Pimentel, Márcio das Virgens Rebouças, Vitor Hugo da Silva, Alan Rocha Salles
Publikováno v:
Fuel Processing Technology. 131:230-237
Naphtha is an important feedstock for the petrochemical industry and accurate measurement of its detailed composition is essential for the optimization of pyrolysis processes. In the present work, the suitability of using near infrared (NIR) for the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89525dce2ab12d16b507b18fbdbe7fb0
https://doi.org/10.1016/j.fuproc.2014.10.035
https://doi.org/10.1016/j.fuproc.2014.10.035
Autor:
Everaldo Paulo de Medeiros, Márcio José Coelho Pontes, Welma T. S. Vilar, Maria Ivanda S. Gonçalves
Publikováno v:
Analytical Methods. 7:5869-5875
This study proposes the use of digital images and multivariate analysis as an alternative methodology for the classification of naturally colored cotton fiber, according to cultivar type. For this purpose, two groups were evaluated: the first compris
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d929938f23117d809573f6cef17123a1
https://doi.org/10.1039/c5ay01116g
https://doi.org/10.1039/c5ay01116g